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中文简体ANSI/ASME B18.2.1 automotive hexagonal flange bolts are designed with a hexagonal head and an integral flange to increase the bearing surface, reduce the compressive stress between the bolt and the connected parts, and improve the stability of the connection. The size range is from 1/4 inch to 6 inches. ANSI/ASME B18.2.1 automotive hexagonal flange bolts are widely used in the automotive industry, especially in the fastening connection of engines, chassis and structural components to ensure high-strength and high-reliability assembly requirements.
The bolts are usually made of high-strength alloy steel and heat-treated to meet the automotive industry's strict requirements for mechanical properties, fatigue resistance and corrosion resistance. In addition, its threads comply with the unified thread standards (UNC/UNF), and can provide surface treatments such as galvanizing, electroplating or Dacromet according to different use environments to enhance corrosion resistance and extend service life.
